Boat.



PATENTED DEC. 3, 1907.

B. TERRELL.

BOAT.

APPLICATION FILED MAY 4, 1907.

Z0171, er-rGZZ 'designate the sides of the boat.

UNITED i lLAH TERRELL, JF COLUMBUS, OHIO.

BOAT.

Specification of Letters Patent.

Patented Dec. 3, 1907.

Apnlication filed May 4. 1907. Serial No. 371.806-

To all whom it may concern:

Be it known that I, ELAN TERRELL, citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful improvements in Boats, of which the following is a specification.

My invention relates to boats and has for its object the provision of a novel construction for a power driven boat, the construction being such that the action of a propeller exhausts the water from in front of the boat and the follow wave kicked up by the propeller, acts against an inclined plane bottom in such manner that the follow wave acts to drive the boat forward.

Further objects and advantages of the invention will be set forth in the detailed de scription which now follows.

In the accompanying drawing: Figure 1 is a side elevation of a motor boat constructed in. accordance with the invention, Fig. 2 is a longitudinalvertical section of said boat, and, Fig. 3 is a bottom plan view of said heat.

Like numerals designate corresponding parts in all of the figures of the drawing.

Referring to the drawing, the numerals 5 From a point 6, the bottom 7 of the boat is inclined upwardly and to the rear. A rudder 8 acts to guide the boat in the usual and well known manner. The bottom 7 is continued forwardly from the point 6 upon each side of a 1 well 9 to form the projections 13. T he bottom proper of the boat'at the bow is formed by sheathing 14. This bottom is inclined upwardly as at 15 and downwardly as at 16 to complete the bottom proper of the boat, the inclined portions 15 and 16 forming the well 9. It is in this well that the propeller 17 is disposed. This propeller is mounted upon a shaft 18 which is driven from a motor H). A keel 20 is centrally disposed and extends from the bow of the boat to a point between the projections 12). A plate or sheathing 21 extends between these projections, the keel being cut out as at 22 to aeci'nnmodate this plate.

Fins 23 are disposed at each side of the boat 'and extend lengthwise thereof, said lins projecting below the bottom 7 and tending to confine the. follow wave between themselves.

These fins likewise give additional steadiness to the boat, particularly when the boat is turning around rapidly.

The operation of the boat is as follows: When the motor 19 is started and ower is applied to the propeller, water is (rawn in along each side of the keel 20"and between the inclined portion of the bottom 15 and the plate 21, the propeller acting to exhaust the water in front of the boat and the follow wave kicked up by the pro eller acting upon the inclined bottom 7 to rive the boat forward. It will therefore be seen that the principle involved is that of exhausting the water from in front of shoot and throwing said water beneath an inclined plane.

If the plate 21 were not present, much of the water driven rearwardly by the propeller, would come from a point beneath the boat instead of from in front of the boat. By disposing the plate 21, as shown, the wa ter is prevented from rushing up to the propeller, but must come to the propeller from the front of the boat. struction, the water is more effectively exhausted from in front of the boat, than would be'the case if the plate 21 were not present.

Actual tests made with a boat constructed in the manner shown and described, have demonstrated that considerably more s eed per horse-power may be attained with a oat of this model, than with a boat built in the ordinary manner.

What I claim, is: v

1. A boat having a flat inclined bottom which terminates in a pair of pointed extensions, there being a well located between said pointed extensions, means located in said well for exhausting the water from in front of the boat and disposing it beneath said inclined bottom, and a closure for a portion of the bottom of the well,

2. A boat having, a Hat inclined bottom which terminates in a pair of pointed extensions, there. being a well located between said pointed extensions, means located in said well for exhausting the water-from in front of the boat and disposing it beneath said inclined bottom, and a closure for a portion of the bottom of the well, said closure extending between said pointed projections.

By virtue of this con- 3. A boat having a flat inclined bottom trally disposed keel {WEI Ell ii ojeets from said 1 0 which terminates in a pair of pointed extenwell to the bow of the boat. sions, there being a Well located between said In testimony whereof I affix my signature pointed v extensions, means located 'in said inpresence of two witnesses. well for exhaust ng the water from in front of ELAH TERRELL.

the boat and disposing it beneath said inclined bottom, a closure for a portion of the Witnesses:

bottom 0)? the well, said clo'sure extending be- FRANK G. CAMPBELL, tween sald pointed pr ojeotions, and a cen- L. CARL STOUGHTON. 

